What is CVE-2026-2687?

CVE-2026-2687 is a medium-severity vulnerability in Reading Progressbar, classified under Cross-site Scripting. CVSS score: 4.3/10. Published 2026-03-12.

How severe is CVE-2026-2687?

Medium severity. CVSS v3 base score is 4.3 out of 10.

XSS in Reading Progressbar

CVE-2026-2687

The Reading progressbar WordPress plugin before 1.3.1 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup).

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.001 (3.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:L.

Affected products

Unknown Reading Progressbar — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

contact@wpscan.com (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-2687?: CVE-2026-2687 is a medium-severity vulnerability in Reading Progressbar, classified under Cross-site Scripting. CVSS score: 4.3/10. Published 2026-03-12.
How severe is CVE-2026-2687?: Medium severity. CVSS v3 base score is 4.3 out of 10.